Update. What I thought was a white flash was actually missing textures! When I ran the heaven benchmark as the camera pans the front of the ship at the 69 tenths of a second mark at 49 seconds the ship completely disappears. Thanks Fraps! I was able to capture that. So It wasn't corrupt at all but missing entirely!

This happens at random times and doesn't always. Sometimes it's different textures like an entire building. Methinks it's overly aggressive drivers.